Web-ja: update introduction

[lilypond.git] / lily / stencil.cc

diff --git a/lily/stencil.cc b/lily/stencil.cc
index 51f051d597f3588e954db618928d7f734173e77e..dc5549f6314393a0c3393fd088d62cee50db1b70 100644 (file)
--- a/lily/stencil.cc
+++ b/lily/stencil.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1997--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
   LilyPond is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -25,7 +25,6 @@
 #include "string-convert.hh"
 #include "warn.hh"
 
-#include "ly-smobs.icc"
 
 Stencil::Stencil ()
 {
@@ -39,24 +38,13 @@ Stencil::Stencil (Box b, SCM func)
   dim_ = b;
 }
 
-int
-Stencil::print_smob (SCM, SCM port, scm_print_state *)
-{
-  scm_puts ("#<Stencil ", port);
-  scm_puts (" >", port);
-  return 1;
-}
-
 SCM
-Stencil::mark_smob (SCM smob)
+Stencil::mark_smob () const
 {
-  Stencil *s = (Stencil *) SCM_CELL_WORD_1 (smob);
-  return s->expr_;
+  return expr_;
 }
 
-IMPLEMENT_SIMPLE_SMOBS (Stencil);
-IMPLEMENT_TYPE_P (Stencil, "ly:stencil?");
-IMPLEMENT_DEFAULT_EQUAL_P (Stencil);
+const char * const Stencil::type_p_name_ = "ly:stencil?";
 
 Interval
 Stencil::extent (Axis a) const
@@ -67,7 +55,7 @@ Stencil::extent (Axis a) const
 bool
 Stencil::is_empty () const
 {
-  return (expr_ == SCM_EOL
+  return (scm_is_null (expr_)
           || dim_.is_empty ());
 }
 
@@ -92,7 +80,7 @@ Stencil::extent_box () const
 void
 Stencil::rotate (Real a, Offset off)
 {
-  rotate_degrees (a * 180 / M_PI, off);
+  rotate_degrees (a, off);
 }
 
 /*
@@ -116,10 +104,10 @@ Stencil::rotate_degrees_absolute (Real a, Offset absolute_off)
    *         *this = rotated()
    */
 
-  expr_ = scm_list_n (ly_symbol2scm ("rotate-stencil"),
+  expr_ = scm_list_3 (ly_symbol2scm ("rotate-stencil"),
                       scm_list_2 (scm_from_double (a),
                                   scm_cons (scm_from_double (x), scm_from_double (y))),
-                      expr_, SCM_UNDEFINED);
+                      expr_);
 
   /*
    * Calculate the new bounding box
@@ -133,7 +121,7 @@ Stencil::rotate_degrees_absolute (Real a, Offset absolute_off)
   pts.push_back (Offset (shifted_box.x ().at (RIGHT), shifted_box.y ().at (UP)));
   pts.push_back (Offset (shifted_box.x ().at (LEFT), shifted_box.y ().at (UP)));
 
-  const Offset rot = complex_exp (Offset (0, a * M_PI / 180.0));
+  const Offset rot (offset_directed (a));
   dim_.set_empty ();
   for (vsize i = 0; i < pts.size (); i++)
     dim_.add_point (pts[i] * rot + absolute_off);
@@ -179,11 +167,10 @@ Stencil::translate (Offset o)
     }
 
   if (!scm_is_null (expr_))
-    expr_ = scm_list_n (ly_symbol2scm ("translate-stencil"),
+    expr_ = scm_list_3 (ly_symbol2scm ("translate-stencil"),
                         ly_offset2scm (o),
-                        expr_, SCM_UNDEFINED);
-  if (!is_empty ())
-    dim_.translate (o);
+                        expr_);
+  dim_.translate (o);
 }
 
 void
@@ -428,3 +415,13 @@ Stencil::translated (Offset z) const
   s.translate (z);
   return s;
 }
+
+Stencil
+Stencil::with_outline (Stencil const &ol) const
+{
+  Stencil new_stencil (ol.extent_box (),
+                       scm_list_3 (ly_symbol2scm ("with-outline"),
+                                   ol.expr (),
+                                   expr ()));
+  return new_stencil;
+}